A girl walks through rubbish left by sea waves along Clifton beach in Karachi, Pakistan September 5, 2017. (Photo by Akhtar Soomro/Reuters)

Boys play on a damaged military tank that belonged to forces loyal to Syria's President Bashar al-Assad in the rebel-held southern town of Bosra al-Sham, Deraa Governorate, Syria September 19, 2017. (Photo by Alaa Al-Faqir/Reuters)

Yemeni scouts take part in a parade to mark the anniversary of the 1962 revolution, in the country' s capital Sanaa, on September 25, 2017. (Photo by Mohammed Huwais/AFP Photo)

Street children look on as supporters of President Uhuru Kenyatta demonstrate against the supreme court’s nullification of Kenyatta’s election victory in Nairobi, Kenya on September 19, 2017. (Photo by Baz Ratner/Reuters)

Children play on the streets of the Headlands area of Hartlepool on September 4, 2017 in Hartlepool, England. Hartlepool in the North East of England is one of the many coastal towns lagging behind inland areas with some of the worst levels of economic and social deprivation in the country. The Social Market Foundation (SMF) found that 85% of Great Britain's 98 coastal local authorities had pay levels below the national average for 2016. The government has announced that it will give 40 million GBP to encourage tourism and boost employment in the areas. (Photo by Christopher Furlong/Getty Images)

A girl walks past Brazilian soldiers standing on patrol in the Rocinha “favela” community on September 25, 2017 in Rio de Janeiro, Brazil. The Brazilian Army and other armed forces entered the favela on September 22 in an ongoing operation following firefights involving drug gangs in the favela, which is one of the largest in Latin America. Rio has suffered an uptick in violence following the Rio 2016 Olympic Games. (Photo by Mario Tama/Getty Images)

A child evacuee plays with a toy gun in an evacuation center, after families fled their homes from Marawi City to avoid the fighting between government troops and pro-IS militants group, in Saguiaran town, Lanao del Sur province, southern Philippines on September 6, 2017. (Photo by Romeo Ranoco/Reuters)

Students sit in a classroom at a school in the Quneitra countryside, Syria September 12, 2017. (Photo by Alaa Al-Faqir/Reuters)

A girl eats a piece of ice as she stands outside her family tent on the outskirts of Peshawar, Pakistan September 7, 2017. (Photo by Fayaz Aziz/Reuters)

Cadets of the Siberian military school attend a ceremony marking Knowledge Day in Novosibirsk, Russia on September 1, 2017. The holiday marks the beginning of a new school year in Russia and is celebrated on September 1. (Photo by Kirill Kukhmar/TASS)

Children wearing traditional outfits wait before a march marking one year since the death of Nobel laureate and Holocaust survivor Elie Wiesel in Sighetu Marmatiei, northern Romania, Sunday, September 10, 2017. Hundreds marched on Sunday in Wiesel's Romanian hometown, the scene of mass deportation of Jews to Nazi death camps in 1944. (Photo by Vadim Ghirda/AP Photo)

In this August 21, 2017 file photo, a soldier pats down a woman as a girl waits during a security operation at the Jacarezinho slum, in Rio de Janeiro, Brazil. In July the federal government deployed over 8,500 troops to try to stamp out crime in Rio's roughest neighborhoods. But so far they have not been able to stem the bloodshed. (Photo by Silvia Izquierdo/AP Photo)

Yousef Al-Bahtini, a twelve-year-old Palestinian boy invited to attempt the record attempt for “fastest time to travel 20 metres in a contortion roll” by Guinness World Records, shows off his acrobatic skills as he contorts his body at the seaport in Gaza City on September 20, 2017. Al-Bahtini currently awaits permission to travel to Jordan where he is to perform the attempt. (Photo by Mohammed Abed/AFP Photo)

A boy sits on World War II Katyusha missile system in the centre of Volgograd, Russia, August 22, 2017. (Photo by Maxim Shemetov/Reuters)

A Rohingya Muslim boy, who crossed over from Myanmar into Bangladesh, pleads with aid workers to give him a bag of rice near Balukhali refugee camp, Bangladesh, Thursday, September 21, 2017. With Rohingya refugees still flooding across the border from Myanmar, those packed into camps and makeshift settlements in Bangladesh are desperate for scant basic resources and fights erupt over food and water. (Photo by Dar Yasin/AP Photo)

A Rohingya refugee child poses in the stairwell of a building on the outskirts of Srinagar on September 14, 2017. Eighteen families of Rohingya refugees from Myanmar have been living in Srinagar for the past six months, some of the almost 6000 Rohingya refugees who are living in 18 refugee camps in India since 2012 Rakhine state riots. After a fresh spate of violence, the number of Rohingya who have fled Myanmar for Bangladesh to escape ethnic unrest hit 389,000 and the United Nations warned of a looming “worst case scenario” with all of the Muslim minority group trying to leave. US Secretary of State Rex Tillerson on September 14, condemned violence against Rohingya Muslims in Myanmar as “unacceptable”, as thousands of refugees continue to stream across the border into Bangladesh. (Photo by Tauseef Mustafa/AFP Photo)

A Belarusian schoolgirl salutes during celebrations commemorating the 27th anniversary of the country's Young Pioneer movement in Minsk, Belarus September 13, 2017. Early pro-communist pioneer movements appeared in Russia after the 1917 Bolshevik revolution and in May 1922, they were organised into the Young Pioneer Organisation of the Soviet Union with units active in all republics of the union. In Belarus, the Young Pioneers remains a government-loyal youth movement. (Photo by Vasily Fedosenko/Reuters)

A young Rohingya refugee washes himself at the Jalpatoli refugee camp in the no-man's land area between Myanmar and Bangladesh, near Gumdhum village in Ukhia on September 16, 2017. According to the UN nearly 400,000 Rohingya have arrived in Bangladesh since August 25 after fleeing a military crackdown launched by Myanmar's military in response to attacks by Rohingya rebels. (Photo by Dominique Faget/AFP Photo)

An Iraqi Shiite Muslim sits with a knife as he takes part in a traditional mourning event during Ashura commemorations that mark the killing of Imam Hussein, one of Shiite Islam's most revered figures, early October 1, 2017 in the holy city of Najaf. Ashura, commemorates the killing of Imam Hussein, the grandson of the Prophet Mohammed, by the army of the Caliph Yazid in 680 AD, the formative event in Shiite Islam. (Photo by Haidar Hamdani/AFP Photo)

In this Wednesday, September 20, 2017 photo, a Rohingya Muslim boy walks carrying belongings near Balukhali refugee camp in Cox's Bazar, Bangladesh. Children make up about 60 percent of the sea of humanity that has poured in to Bangladesh over the last four weeks fleeing terrible persecution in Myanmar. And the U.N.’s child rights agency UNICEF has so far counted about 1,400 children who have crossed the border without their parents. (Photo by Bernat Armangue/AP Photo)